#include <iostream>
using namespace std;
 
int main()
{
    double n = 0, r = 0; // 喵的身长和碗的半径
    while(cin >> n >> r)
    {
        double len = 2 * 3.14 * r;
        if(len >= n)
            cout << "Yes" << endl;
        else
            cout << "No" << endl;
    }
}